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Thoroughbred Diesel has been your online performance headquarters since 2002. We know how to get the most performance out of your pickup truck and offer all of today's most popular diesel performance products.

Core Charge: We do not charge for the core at the time of the purchase. By placing this order you are agreeing to let Thoroughbred Diesel charge your credit card $500 for a 15X VP44 in 14 days if you have not returned your core. You will have 14 business days from the time of receipt of the shipping label to get the core back to Thoroughbred. You will be sent a pre-paid shipping label separate through email. If you have any problems contact

Core Charge: We do not charge for the core at the time of the purchase. By placing this order you are agreeing to let Thoroughbred Diesel charge your credit card $500 in 14 days if you have not returned your core. You will have 14 business days from the time of receipt of the shipping label to get the core back to Thoroughbred. You will be sent a pre-paid shipping label separate through email. If you have any problems contact cores@thoroughbreddiesel.com